Will currently pay 57BTC for portal 2 preorder (44.99USD on steam) or adjusted rates on mtgox. Would prefer to deal with someone who has successful past dealings(i.e. otc).
Do you have an OTC rating? I would not be comfortable engaging in this transaction unless you had a positive OTC rating traceable from one of the voiced members.
(Disclosure: I don't have an OTC rating at the moment, but since you can put the BTC in escrow you are safe.)